#define _CRT_SECURE_NO_WARNINGS 1
#include <stdio.h>

int main() {
    int n = 0;
    int i = 0, j = 0, k = 0;
    while (scanf("%d", &n) != EOF) {
        for (i = 0;i <= n;i++)
        {
            for (j = 0;j < n - i;j++)
            {
                printf(" ");
            }
            for (k = 0;k <= i;k++)
            {
                printf("* ");
            }
            printf("\n");
        }
        for (i = 0;i < n;i++)
        {
            for (j = 0;j <= i;j++)
            {
                printf(" ");
            }
            for (k = 0;k < n - i;k++)
            {
                printf("* ");
            }
            printf("\n");
        }
    }
    return 0;
}